The
Christianization of Scandinavia took place between the 8th and the 12th centuries. The realms of
Scandinavia proper,
Denmark,
Norway and
Sweden, established their own
Archdioceses, responsible directly to the Pope, in 1104, 1154 and 1164, respectively. The
conversion to
Christianity of the Scandinavian people required more time, since it took additional efforts to establish a network of churches. The
Samis remained unconverted until the 18th century.